That's a typical timer crash, but you were unable to debug it withdebugobjects because commit d3f661d6 broke those.

Christoph, debugobjects do not need to run with interuptsdisabled. And just because they were in that section to keep all thedebug stuff together does not make an excuse for not looking at thecode and just slopping it into some totally unrelated ifdef along witha completely bogus comment.